5[2]Bstman O, Kiviluoto O, Nirhamo J. Comminuted displaced fractures of the patella. Injury,1981,13:196-202.
6[4]Carpenter JE, Kasman RA, Patel N,et al . Biomechanical evaluation of current patella fracture fixation techniques. J Orthop Trauma,1997,11: 351-356.